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About Machinery Company

Koyo / JTEKT bearing supplier for gearboxes, drive shafts and general machinery.

Machinery Company specialises in Koyo and JTEKT bearings for industrial power transmission. We supply single part numbers and complete bearing sets for gearboxes, drive shafts and machine assemblies, for buyers worldwide.

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Opened industrial gearbox with tapered roller bearings seated on the output shaft

What we do

Koyo / JTEKT transmission bearings, sourced by part number or complete set.

We focus on the bearing types used in gearboxes, drive shafts and mechanical drives, and we work with the references buyers already have on their drawings and records.

Boxed Koyo bearings lined up on a warehouse shelf

01

Brand range: Koyo and JTEKT

Koyo is the bearing brand of JTEKT. Older gearbox BOMs often carry Koyo marks while recent purchase records show JTEKT references. You can quote with either name and your existing part numbers.

  • Old Koyo markings accepted as the starting reference
  • Current JTEKT references matched line by line
  • Both names kept on one purchasing list
Cylindrical and spherical roller bearings arranged on a steel workbench
Needle roller bearing close-up showing the cage and rollers
Deep groove ball bearing held in a gloved hand

02

Product range: from needle rollers to large roller bearings

Small-section and heavy-duty types are both in our supply range, so one supplier covers tight radial spaces and heavily loaded shafts.

  • Tapered rollerGearboxes, combined radial and axial loads
  • Cylindrical rollerIndustrial gears and shaft systems
  • Deep groove ballAuxiliary drives and general machinery
  • Needle rollerPositions with limited radial space
  • Angular contact ballSpecified locating arrangements
  • Spherical rollerHeavy-duty industrial shafts
  • Thrust ballAxial load positions
  • Application-specificSupplied against drawings or equipment records
View all Koyo / JTEKT bearing categories
Mechanic laying out the bearings removed from a disassembled transmission

03

Three ways to request a quote

Start from whatever you have on hand. A whole gearbox or machine can go in as one itemised request.

  1. A
    By part number

    Koyo marking or JTEKT reference, complete or partial.

  2. B
    By equipment model

    Gearbox or machine model, with the shaft position.

  3. C
    By assembly list

    Full BOM with per-unit quantity and order total kept on separate lines.

Sourcing channel

Koyo and JTEKT bearings matched to the references on your records.

Machinery Company supplies Koyo and JTEKT bearings to equipment builders, repair workshops and maintenance teams, quoted line by line against your part numbers.

Who we serve

We supply builders, rebuilders and maintenance teams running power transmission equipment.

  • Gearbox and reducer manufacturers

    Bearing sets for new gearbox builds, from prototype lots to production runs.

  • Equipment and machinery assemblers

    Mixed bearing lists for general machinery and mechanical assemblies.

  • Transmission repair workshops

    Overhaul sets identified by shaft position for steady repair turnaround.

  • Cement plants and heavy industry

    Spherical and large roller bearings for heavy conveyor gearboxes.

  • Agricultural parts distributors

    Replacement bearings for farm machinery, including worn or partial references.

  • Planned replacement projects

    Scheduled maintenance lists quoted ahead of the shutdown window.

Built around your role

Engineers, buyers and repair managers each get the detail they check first.

Engineer measuring a tapered roller bearing with a digital caliper

Transmission design engineers

  • Bearing geometry checked against the approved assembly spec
  • Needle roller positions matched on the full envelope, not bore alone
  • Catalogue execution and cage material as specified
Purchasing staff checking bearing boxes on a pallet in a warehouse

Production buyers

  • Prototype quantities and production volumes quoted separately
  • Per-unit usage and order total on distinct lines
  • Mixed bearing types in one comparable, itemised quote
Repair manager inspecting a gearbox housing on a workshop stand

Gearbox repair managers

  • Bearings identified by shaft position
  • Full overhaul list checked as one set
  • Worn or blurred markings worked from clear photos

How we work

Three principles keep every Koyo / JTEKT order correct.

  1. 01

    Technical changes need buyer approval

    No change to specification, execution or configuration goes ahead without your sign-off.

  2. 02

    Alternatives are marked separately

    Any substitute reference sits on its own line, clearly labelled, so it is never mistaken for the original part.

  3. 03

    Identification gaps closed before the quote

    Exact references and the complete assembly configuration are confirmed first, so the price matches the part that fits.

Technician comparing an old worn bearing with a new replacement bearing

Customer locations

Gearbox shops, plants and manufacturers around the world buy from Machinery Company.

Our customer reviews come from Italy, Egypt, the United States, Brazil, South Africa and Japan.

  • Italy
  • Egypt
  • United States
  • Brazil
  • South Africa
  • Japan

Customer reviews

Buyers rate us on correct parts, clear identification and steady delivery.

Swipe to read more →

5.0
"What stood out was how they handled an incomplete part number. We sent a blurry photo of a bearing that had been in service for years, and they came back with two possible Koyo references plus the dimensions to verify. That kind of support is hard to find."
Brandon ColeBrandon ColePrairie States Ag Parts · USA (IA)
5.0
"Our gearbox rebuild shop has used Koyo tapered and cylindrical roller bearings for years. This supplier consistently delivers the correct JTEKT execution, and they flagged a substitution that would have failed in service before we placed the order."
Luca MorettiLuca MorettiOfficina Riduttori Emilia · Italy
4.9
"We ordered a set of Koyo spherical roller bearings for a heavy conveyor gearbox at our cement plant. They arrived in good time, the load rating matched our calculation, and in continuous operation the bearing temperature reads normal. No surprises."
Ahmed El-SayedAhmed El-SayedArabian Cement Co. · Egypt
5.0
"We are a transmission repair workshop in Johannesburg. Lead times on Koyo bearings used to be a pain point. Since we started sourcing here, delivery has been steady and the bearings arrive in good condition. It has stabilized our repair turnaround."
WMWillem van der MerweVan der Merwe Transmissies · South Africa

FAQ

Questions about sourcing Koyo / JTEKT bearings

Should I send the old Koyo marking or the current JTEKT reference?+

Send both if you have them. We accept either brand name with your existing part numbers and match old Koyo marks to current JTEKT references on the same list.

Can you quote per-unit usage and total order quantity together?+

Yes. Each bearing line shows quantity per gearbox and the total for the order, so mixed sets are neither under- nor over-ordered.

What if the part number on my bearing is worn or incomplete?+

Send a clear photo of the marking and note what still needs confirming. We close the identification gap before quoting, and any alternative is marked separately for your approval.

Large industrial gearbox in a heavy-duty conveyor drive

Start your list

Send your gearbox BOM and get one itemised Koyo / JTEKT quote.

Include the gearbox model, Koyo / JTEKT markings, shaft positions, per-unit and total quantities, and the destination country.

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